A JavaSW class needs to implement the Serializable interface if we'd like to be able to save the state of an object of that class. SerializationW allows us to do things like save an object's state to a file in the file system or transfer the object across a network. As an example, the MyBean class implements the Serializable interface.

The FileSerialization class creates a MyBean object via its two-argument constructor. It writes the object to a file called "mybean.ser" via an ObjectOutputStream. After that, it reads the "mybean.ser" file via an ObjectInputStream, loading the object state into a MyBean object. It then displays the values stored in the object.